[webkit-changes] [WebKit/WebKit] 298627: [WGSL] Struct size rounding overflows

[Tadeu Zagallo]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 2986275957ba7c73b1699e2059540a6c4b2b9126
      https://github.com/WebKit/WebKit/commit/2986275957ba7c73b1699e2059540a6c4b2b9126
  Author: Tadeu Zagallo <tzagallo at apple.com>
  Date:   2024-06-07 (Fri, 07 Jun 2024)

  Changed paths:
    M Source/WebGPU/WGSL/AttributeValidator.cpp
    M Source/WebGPU/WGSL/tests/valid/struct.wgsl

  Log Message:
  -----------
  [WGSL] Struct size rounding overflows
https://bugs.webkit.org/show_bug.cgi?id=275180
rdar://129227421

Reviewed by Mike Wyrzykowski.

We were checking for overflow of the struct size, but missed the check for overflow
when rounding up the total size to the alignment.

* Source/WebGPU/WGSL/AttributeValidator.cpp:
(WGSL::AttributeValidator::visit):
* Source/WebGPU/WGSL/tests/valid/struct.wgsl:

Canonical link: https://commits.webkit.org/279809@main



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